Developmental Disabilities Councils exist in each state to:

1. engage in advocacy, capacity building, and systemic change activities that are consistent with the purposes described in the Developmental Disability Act; and
2. contribute to a coordinated, consumer- and family-centered, consumer- and family-directed, comprehensive system of community services, individualized supports, and other forms of assistance that enable individuals with developmental disabilities to exercise self-determination, be independent, be productive, and be integrated and included in all facets of community life.

Ref: Developmental Disabilities Act 2000